Fifteen customers of a Korean-style barbecue restaurant chain fell ill last month, and the owners say the infections might have been caused by Australian beef imports.
In Japan, health authorities are looking into two E. coli outbreaks, one of which has so far killed four people.
Both outbreaks of the O157 strain E. coli are linked to Korean-style barbecue restaurants.
In one outbreak, 20 people became sick in Toyama prefecture, 15 with O157 after eating at a popular Gyukaku restaurant chain on May 6, local officials told reporters.
REINS International, the operator of the Gyukaku chain, apologised and said it suspected the infections might have been caused by Australian beef imports.
Beef Association chairman Brad Bellinger says the reports are unconfirmed and has questioned whether the restaurant owners might be trying to shift blame elsewhere...